Just a thought, maybe iptables (kernel firewall) is blocking the port?

Try this as root: 
# /sbin/iptables -F

And then try to telnet to the imap port.

Note: This command effectively disables the firewall, use it only for 
testing. The rules are loaded from /etc/sysconfig/iptables at start-up, 
you can check that file.

cheers,
jad

On Wed, 28 Apr 2004, Darren Cohen wrote:

> > 1.  no i cannot connect to the imap server from either side of the dmz.
> >
> > 2.  i meant that the imap, imaps, and pop3 were all enabled.
> >
> > 3. my hosts.allow and hosts.deny files have nothing in them.
> >
> > 4.  here is what my box is listening for:
> >
> > Proto Recv-Q Send-Q Local Address           Foreign Address         
> > State
> > tcp        0      0 0.0.0.0:32768           0.0.0.0:*               
> > LISTEN
> > tcp        0      0 127.0.0.1:32769         0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:993             0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:99              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:995             0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:143             0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:111             0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:80              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:22              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 127.0.0.1:631           0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:23              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:25              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:443             0.0.0.0:*               
> > LISTEN
> > tcp        0    138 192.168.1.102:23        69.143.104.198:49928    
> > ESTABLISHED
> > udp        0      0 0.0.0.0:32768           0.0.0.0:*
> > udp        0      0 0.0.0.0:998             0.0.0.0:*
> > udp        0      0 0.0.0.0:111             0.0.0.0:*
> > udp        0      0 0.0.0.0:631             0.0.0.0:*
> > Active UNIX domain sockets (servers and established)
> > Proto RefCnt Flags       Type       State         I-Node Path
> > unix  2      [ ACC ]     STREAM     LISTENING     2586   /dev/gpmctl
> > unix  11     [ ]         DGRAM                    1995   /dev/log
> > unix  2      [ ACC ]     STREAM     LISTENING     2756   
> > /tmp/.font-unix/fs7100
> > unix  2      [ ]         DGRAM                    6787
> > unix  2      [ ]         DGRAM                    6771
> > unix  2      [ ]         DGRAM                    2860
> > unix  2      [ ]         DGRAM                    2806
> > unix  2      [ ]         DGRAM                    2622
> > unix  2      [ ]         DGRAM                    2468
> > unix  2      [ ]         DGRAM                    2204
> > unix  2      [ ]         DGRAM                    2056
> >
> >
> > thanks for any help you may give me.
> >
> > darren
> >
> > On Apr 28, 2004, at 2:10 PM, Mark Crispin wrote:
> >
> >> On Wed, 28 Apr 2004, Darren Cohen wrote:
> >>> I am trying to setup the imap server that came with redhat 9.  I got 
> >>> sendmail working, and the imap, imaps, and pop3 servers all say they 
> >>> are running. However I cannot to connect to any of them.  I tried 
> >>> telnet into the port, and nothing either.  I am using a machine 
> >>> behind a dmz that uses a service to update my dynamic IP, if that 
> >>> makes any sense.
> >>
> >> Can you connect to the IMAP server machine from another machine on 
> >> the same side of the DMZ?  If you can, then the problem may be in 
> >> your DMZ configuration.
> >>
> >> What do you mean by "imap, imaps, and pop3 servers all say they are 
> >> running"?  These servers normally only are started by [x]inetd when a 
> >> connection is made to them.
> >>
> >> Does your TCP wrappers configuration (/etc/hosts.allow, 
> >> /etc/hosts.deny) allow connections to these servers?
> >>
> >> Does "netstat -an" show that ports 110, 143, and 993 are listening?
> >>
> >> What do you mean by "I tried telnet into the port, and nothing 
> >> either"? Did you get an error message?  If so, what was the message?
> >>
> >> -- Mark --
> >>
> >> http://staff.washington.edu/mrc
> >> Science does not emerge from voting, party politics, or public debate.
> >> Si vis pacem, para bellum.
> >>
> >
> 
> 

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